A simple variational method for calculating energy and quantum capacitance of an electron gas with screened interactions
Mesoscale and Nanoscale Physics
2010-11-15 v1 Materials Science
Abstract
We describe a variational procedure for calculating the energy of an electron gas in which the long-range Coulomb interaction is truncated by the screening effect of a nearby metallic gate. We use this procedure to compute the quantum capacitance of the system as a function of electron density and spin polarization. The accuracy of the method is verified against published Monte-Carlo data. The results compare favorably with a recent experiment.
Cite
@article{arxiv.1009.5430,
title = {A simple variational method for calculating energy and quantum capacitance of an electron gas with screened interactions},
author = {Brian Skinner and M. M. Fogler},
journal= {arXiv preprint arXiv:1009.5430},
year = {2010}
}
Comments
4 pages, 3 figures